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United States
Van Dyke Project

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 Location:
0 km NW from Miami, Arizona, United States

  Project Contacts:
Suite 650, 340 - 12th Avenue SW
Calgary
Alberta, Canada
T2R 1L5
Phone  ...  Subscription required
Fax403-264-2920
EmailEmail
WebsiteWeb
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  • Overview
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  • Geology
  • Mining
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  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StagePermitting
Mine TypeIn-Situ
Commodities
  • Copper
Mining Method
  • Solution mining
Mine Life17 years (as of Jan 1, 2020)


Owners

Source: p. 1
CompanyInterestOwnership
Copper Fox Metals Inc. 100 % Indirect
The mineral estate lands cover a total area of 531.5 hectares (ha) and are 100%-owned by Desert Fox Van Dyke Co. (a wholly owned subsidiary of Copper Fox Metals Inc.).

Contractors

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Deposit Type

  • Porphyry
  • Breccia pipe / Stockwork
  • Vein / narrow vein


Summary:

The Globe-Miami mining district in which the Van Dyke project occurs is known mainly for its large porphyry copper deposits, including the Miami-Inspiration, Miami East, Pinto Valley, Copper Cities and Castle Dome mines, and copper-bearing veins of the Old Dominion mine.

Porphyry copper deposits consist of disseminated copper minerals and copper minerals in veins, stockworks and breccias that are relatively evenly distributed throughout large volumes of rock. Porphyry copper deposits are typically high tonnage (greater than 100 million tons) and low to medium grade (0.3–2.0% Cu). They are the world’s most important source of copper, accounting for more than 60% of the annual world copper production and about 65% of known copper resources.

The geometry and dimensions of porphyry copper deposits are diverse, in part because of post-ore intrusions, varied types of host rocks that influence deposit morphology, relative amounts of hypogene and supergene ore each of which has different configurations, and erosion and post-ore deformation including faulting and tilting. Porphyry copper deposits commonly are centered on small cylindrical porphyry stocks or swarms of dikes.

The vertical extent of hypogene mineralization in porphyry copper deposits is generally less than or equal to 1 to 1.5km. The predominant hypogene copper sulphide minerals are chalcopyrite, which occurs in nearly all deposits, and bornite, which occurs in about 75% of deposits. Mol ........


Mining Methods

  • Solution mining


Summary:

The proposed mining method for copper recovery from the Van Dyke deposit is In-situ Copper Recovery methods (ISCR). ISCR has been selected because the Van Dyke deposit is near the town of Miami AZ. Further to this, the fractured nature of the host rock, the presence of saturated joints and fractures within the mineralized zone, and copper mineralization that preferentially occurs along fracture surfaces makes the project a good candidate for ISCR.

In-situ leaching of the oxide resource at Van Dyke is proposed to occur by an injection and recovery well system from underground galleries located just above the oxide deposit, within the Gila Conglomerate. Injection wells will deliver the leachate to the oxide zone, with recovery wells then transporting the dissolved copper in solution to the SX/EW plant at surface. The well holes will be drilled in angled fan patterns from underground galleries and follow an approximate 5-spot pattern with four recovery wells surrounding a single injection well in a repeating pattern, with the average distance between injection and recovery wells designed to be 21m. The final product on site is Grade A copper cathode (99.99% pure) for shipment to the market.

The mine development plan comprises an access ramp from surface for mobile equipment, two declines for access to the production galleries, gallery development within the targeted production zones, and service and ventilation facilities. All underground development is car ........


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityUnitsDailyAvg. AnnualLOM
Copper M lbs  ......  Subscription required851,101
All production numbers are expressed as cathode.
Subscription required - Subscription is required.

Operational Metrics:

Metrics
Annual production capacity  ......  Subscription required
* According to 2020 study.
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Reserves at January 9, 2020:
The solids are based on a 0.025% TOTAL Soluble Cu (TSCU) cut-off.

CategoryTonnage CommodityGradeContained Metal
Indicated 97.637 Mt Copper 0.33 % 717 M lbs
Inferred 168.026 Mt Copper 0.27 % 1,007 M lbs

Commodity Production Costs:

CommodityUnitsAverage
Total cash costs Copper USD  ......  Subscription required&nbs
All-in sustaining costs (AISC) Copper USD  ......  Subscription required&nbs
C1 cash costs Copper USD  ......  Subscription required&nbs
Assumed price Copper USD  ......  Subscription required&nbs
* According to 2020 study / presentation.

2020 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Closure costs $M USD  ......  Subscription required
Well Field OpEx $M USD  ......  Subscription required
Processing OpEx $M USD 440.5
G&A costs $M USD 187.2
Total OpEx $M USD  ......  Subscription required
Income Taxes $M USD  ......  Subscription required
Royalty payments $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
EBITDA (LOM) $M USD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 5% $M USD  ......  Subscription required
Pre-tax NPV @ 10% $M USD  ......  Subscription required
Pre-tax NPV @ 7.5% $M USD  ......  Subscription required
After-tax NPV @ 5% $M USD  ......  Subscription required
After-tax NPV @ 10% $M USD  ......  Subscription required
After-tax NPV @ 7.5% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
Pre-tax payback period, years  ......  Subscription required
After-tax payback period, years  ......  Subscription required
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Feb 26, 2021
....................... Subscription required ....................... Subscription required Subscription required Feb 26, 2021
....................... Subscription required ....................... Subscription required Subscription required Nov 14, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Press Release 2022
................................... Subscription required 2020
Preliminary Economic Assessment 2015
Subscription required - Subscription is required.

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